Abstract: The death causes were inestigated in three different districts of Zhejiang province.Data were analyzed with the indices,such as PYLL,PYLL% and SPYLL%.The results indicate trauma,Toxicosis,cancer,Cardiovascular and cerebrovascular diseases are main resons that are in charge of the potential years of life lost.In the undeveloped rural areas,infectious diseases are also the very important factors.With the above mentioned analyses,suggestion has been put forward on prevention and control diseases in Zhejiang province.